| 摘要 |
This refrigeration cycle device (100) forms a coolant circuit by being filled with a coolant that comprises a substance having the property of causing a disproportional reaction, and a refrigerator oil that is compatible with the coolant. At least a first heat exchanger or a second heat exchanger comprises a plurality of heat-transfer pipes 43 and a header 47 or 48. The internal diameter of the header 47 or 48 is greater than the internal diameter of the heat-transfer pipe 43, and the end section on the coolant outlet side of the heat-transfer pipe 43 is disposed so as to face a pipe inner wall surface 50 of the header. The end section on the coolant outlet side of the heat-transfer pipe 43 is located at a position such that the value of L/d is less than 20 and greater than 0 if the distance from the center 45 or 46 of the end section on the coolant outlet side of the heat-transfer pipe 43 to the pipe inner wall surface 50 of the header corresponding to the center 45 or 46 is the distance L and the inner diameter or equivalent diameter at the end section on the coolant outlet side of the heat-transfer pipe 43 is the inner diameter d. |
